Ventilating system.



Patented Sept. 27, 1910.

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AMELIA LOUISE WERNER, OF CINCINNATI, OHIO.

VENTILATING SYSTEM.

T 0 all whom it may concern:

Be it known that I, AMELIA LOUISE WER- l NEH, a citizen of the UnitedStates, and a resident of Cincinnati, county of Hamilton, and State ofOhio, have invented a new and useful Improvement in Ventilating Systems,of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, forming a part of thisspecification.

My invention relates to a ventilating system adapted especially for useon street cars, and has for its object the introduction, withoutinjurious drafts, of a constant supply of fresh air equally distributedthroughout the car, and the removal of the foul air therefrom; theseobjects to be accomplished by a simple and inexpensive constructionreadily adaptable to a car of any ordinary design.

In the drawings: Figure l is a horizontal longitudinal section, with thefoul air outlet in plan. Fig. 2 is a vertical longitudinal section. Fig.3 is a section showing the foul air outlet.

The numeral 1 indicates the fresh air duct, which is constructed at thetop of the front vestibule of the car, and may be of any suitable shapeadapted thereto. To the inner, and smaller, end of said duct 1, tubes 2and 3 are attached, as shown in Fig. l. The tube 2 extends around notless than three sides of the interior of the car, near the ceilingthereof; said tube 2 has openings at suitably spaced along its underside. Attached to the interior of said tube, above the openings 4, aredepressed flanges, or other current deflectors, 5, each of said flangesbeing in a relation of slightly increased depression to the oneimmediately preceding it in se quence from the duct 1. Completelyenveloping the tube 2, and large enough to create a chamber between itand said tube 2, is the tube 6, said tube 6 having openings 7 suitablyspaced along its upper side. The interior of the tube 6 has noconnection with the air duct, save through the openings lin the tube 2.The ends of the tubes 2 and 6 farthest from the duct 1 are closed by acap 8 as shown. The tube 8 leads from the air duct 1 to a pipe 9connecting with the interior of the car at a point near the ceiling andextending vertically through the roof thereof; said pipe 9 carries onits upper extremity a ventilating cowl l0.

Specification of Letters Patent.

Application filed July 23, 1910.

In order to regulate the supply of air a Patented Sept. 2'7, 1910.

Serial No. 573,469.

' damper 11 of ordinary design is mounted in the duct 1.

From the foregoing the operation of my system will be apparent. Thefresh air will flow from the duct through the tubes 2 and From the tube2 it will be distributed through the openings 4, and by the aid of theflanges 5, equally throughout the chamber between the tubes 2 and 6;from tube 6 it will pass through the openings 7 upwardly into, and beequally distributed by the many small currents throughout, the body ofthe car, descending from the points of entrance in accordance withnatural law. The current passing through the tube 3 will create a draftand suction through the pipe 9, which suction will be further heightenedby the cowl 10, and the foul air, having risen in accordance withnatural law, will be drawn into the pipe and discharged from the body ofthe car.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. A ventilating system comprising a fresh air duct, a tube leading fromsaid duct, said. tube having a series of openings at suitable intervalsalong one of its sides, and a series of air deflectors in said tubeopposed to said openings, each of said deflectors being in a relation ofincreased depression to those preceding it in sequence from said freshair duct.

2. A ventilating system comprising a fresh air duct, a fresh air tubeleading from said duct, said tube having a series of openings atsuitable intervals along one of its sides, and an enveloping tubeadapted to create an air chamber around said fresh air tube and todeflect the currents of air received therefrom, said enveloping tubehaving a series of openings through which the fresh air is released intothe body of the car after having been so deflected, and said fresh airtube and said enveloping tube having their ends farthest from said freshair duct closed.

8. A ventilating system comprising a fresh air duct, a fresh air tubeleading from said duct, said tube having a series of openings atsuitable intervals along one of its sides, a series of air deflectors insaid fresh air tube opposed to said openings, each of said deflectorsbeing in a relation of increased depression to those preceding it insequence from said fresh air duct, and an enveloping tube adapted tocreate an air chamber around said fresh air tube and to deflect thecurrents of air received therefrom, said enveloping tube having a seriesof openings through which the fresh air is released into the body of thecar after having been so deflected, and said fresh air tube and saidenveloping tube having their ends farthest from said fresh air ductclosed.

4:. A ventilating system comprising a fresh air duct, a tube leadingfrom said duct, said tube having a series of openings at suitableintervals along one of its sides, and a series of air deflectors in saidtube opposed to said openings, each of said deflectors being in arelation of increased depression to those preceding it in sequence fromsaid fresh air duct, a pipe adaptedto remove the foul air, and a tubeleading from said fresh air duct to said pipe to produce a suctiontherein.

5. A ventilating system comprising a fresh air duct, a fresh air tubeleading from said duct, said tube having a series of openings atsuitable intervals along one of its sides, an enveloping tube adapted tocreate an air chamber around said fresh air tube and to deflect thecurrents of air received therefrom, said enveloping tube having a seriesof openings through which the fresh air is released into the body of thecar after having been so deflected, and said fresh air tube and saidenveloping tube having their ends farthest from said fresh air ductclosed,

a pipe adapted to remove the foul air, and a tube leading from saidfresh air duct to said pipe to produce a suction therein.

6. A ventilating system comprising a fresh air duct, a fresh air tubeleading from said duct said tube having a series of open ings atsuitable intervals along one of its sides, a series of air deflectors insaid fresh air tube opposed to said openings, each of said deflectorsbeing in a relation of increased depression to those preceding it insequence from said fresh air duct, an enveloping tube adapted to createan air chamber around said fresh air tube and to deflect the currents ofair received therefrom, said enveloping tube having a series of openingsthrough which the fresh air is released into the body of the car afterhaving been so deflected, and said fresh air tube and said envelopingtube having their ends farthest from said fresh air duct closed, a pipeadapted to remove the foul air, and a tube leading from said fresh airduct to said pipe to produce a suction therein.

AMELIA LOUISE l VERNER.

Witnesses CHARLES HOFFMAN, ARTHUR H. EWALD.

